Improvement in grates for cooking-stoves



1. H. WENTWO R TH Grates for Cooking Stoves.

No..!52,2'64. Patentedluhe 23,1874.

W itnosow, w Fi i. I Iii/621,101, 944W") 4 UNITED STATEs PATENT OEEIoE.

JAMES H. W'ENTWORTH, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN GRATES FOR COOKlNG-STOVES.

Specification forming part of Letters Patent No. 1 52,264, dated June23, 1874; application filed April 21, 1874.

To all whom it may concern Be it known that I, J AMEs H. WENTwoETn, ofBoston, in the county of Suffolk and State of Massacl'iusetts, haveinvented certain new and useful Improvements in Grates for Stoves, ofwhich the following, taken in connection with the accompanying drawings,is a specification:

My invention relates to the hanging of the grate and the provisions madefor its removal from. the fire-pot without disturbing the lining offirebrick; and it consists in the formation of an opening in the rearwall of the ash-pit just below the grate, of sufficient size to admit ofthe grate being passed endwise through the same, said opening to beclosed by a door, slide, or other suitable covering when the stove is inworking order. It further consists in so hanging the grate that, bypartially rotating it, and then raising the rear end slightly andswinging said rear end to the right or left, its rear journal will bebrought over an opening in the bar at the rear of the fire-pot, and, byallowing the rear end of the grate to fall again, said journal will passthrough the opening, and the whole rear end of the grate will fall belowsaid bar, and by another partial rotation the grate will be brought intoa position opposite the opening in the rear wall of the ash-pit, throughwhich the grate may be entirely withdrawn without in the leastdisturbing the firebrick lining of the fire-box.

In the drawings, Figure l is a sectional plan of a stove embodying myimprovements, the cutting plane being on line aw on Fig. 2. Fig 2 is avertical section on line y 3 on Fig. 1, and Fig. 3 is a transversevertical section on line 2 e on Fig. 1.

A is the base-plate; B, the top plate, provided with suitable openingsfor the stovefurniture; and O, the vertical wall-plates, a1 constructedand secured together in any wellknown manner. D is the ash-pit; E, thefirebox, provided with the usual lining of firebrick, as indicated indotted lines; and F is the oven. G is the usual horizontal flue over thetop of the oven. H is the vertical descending flue in the rear of theoven; and I is a horizontal flue below the oven, leading to the uptakeor outside flue J, leading to the chimney, all arranged in the usualmanner.

K is the grate, provided with the central pintles or journals (0 b,which rest in bear ings in the bars or ledges c d, projecting inwardfrom the walls of the fire-box, and upon which the fire-brick liningrests in the usual manner. The journal a, at the front end of the grate,projects through the bar of the wall-plate between the fire-door and theashpit door, and has its outer end squared to re ceive a wrench forshaking or revolving the grate. The journal I), at the rear end of thegrate, rests in a semicircular groove, or halfbox bearing, formed in theupper side of the ledge d. The inner edge of the ledge d is providedwith one or more notches, e, of suitable depth and width to allow of thefree passage of the journal I) through the same by partially rotatingthe grate, drawing it to ward the front, and swinging the rear end toone side until said journal is over said notch or opening. L is anopening, formed in the rear wall-plate of the ash-pit just below theledge 61, of sufficient size to admit of the passage of the grateendwise through the same. M is a door or cover, by which the opening Lis closed at all times except when it becomes necessary to remove orinsert a grate. "When the rear end of the grate K has fallen below theledge d, it is again rotated till it is in position to pass through theopening L, through which it is then withdrawn, and a new one may beinserted in the same manner by simply reversing the order of operations.

\Vhat I claim as new, and desire to secure by Letters Patent of theUnited States, is-- 1. The opening L through the rear wall of theash-pit below the grate, in combination with a cover or door, M, toclose the same, and through which, by opening or removing said door orcover, the grate may be withdrawn from the fire-box, substantially asdescribed.

2. In combination with the grate K and the opening L, arranged as setforth, the ledge d, provided with one or more notches, a, substantiallyas described.

Executed at Boston this 16th day of April, 1874.

JAS. H. \VENTWORTH.

\Vitnesses L. A. Woon, WM. P. EnwAnns.

